UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'epchzIxhUnrPG2ft15dov+8qQRFGg87i0Z6VO6OMzR4=' 
WHERE 
  key_id = '6d8d198014bca407ca8383d003892f3c3495b0c4f08bf23a84c018a087bb0b8c' 
  AND (
    token = 'epchzIxhUnrPG2ft15dov+8qQRFGg87i0Z6VO6OMzR4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )